infra/roles/munin_client/tasks/main.yml

---

- name: apt install munin-node
  apt:
    state: present
    name: munin-node
  register: install_munin

- name: Configure munin node
  shell: munin-node-configure --shell | grep -v ip_ | sh
  when: install_munin is changed
  notify: munin

- name: Copy munin-node.conf
  copy:
    dest: /etc/munin/munin-node.conf
    content: |
      log_level 4
      log_file /var/log/munin/munin-node.log
      pid_file /var/run/munin/munin-node.pid

      background 1
      setsid 1

      user root
      group root

      ignore_file [\#~]$
      ignore_file DEADJOE$
      ignore_file \.bak$
      ignore_file %$
      ignore_file \.dpkg-(tmp|new|old|dist)$
      ignore_file \.rpm(save|new)$
      ignore_file \.pod$

      {% for host in groups["muninservers"] %}
      allow ^{{ hostvars[host]['ansible_facts']['default_ipv6']['address'] }}$
      {% endfor %}
      allow ^127.0.0.1$

      host *
      port 4949
  notify: munin

- name: Setup apt_all plugin
  file:
    src: /usr/share/munin/plugins/apt_all
    dest: /etc/munin/plugins/apt_all
    state: link
  notify: munin

- name: Remove native munin apt update
  # It is no longer supported
  # and raises errors.
  # The doc tells to use APT::Periodic::Update-Package-Lists "1"; instead.
  ansible.builtin.lineinfile:
    path: /etc/cron.d/munin-node
    state: absent
    regexp: '/etc/munin/plugins/apt_all update'